I have an Outback off-grid system, VFX3524, a 24V battery bank, and a generac propane generator. We currently have no pv panels yet. I've been charging the bank with genset, until we have pv. Problem is the genset went down, been using gas gen to charge batteries. I am working away from home, and my wife might not be charging batteries enough. Gas gen wasn't working for couple days, and when she got it going, their was no power to the house. The mate itself was blank, is it possible batteries were to low even to power the mate?